pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4292-4173.ps) >>/Users/jc/w/tmp/Tune-4292-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Gow/CSR/4173=Fingalls_Lamentations.abc2.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_42921.log 144093 Log file, useful mostly for debugging
Coll_42924.log 518082 Log file, useful mostly for debugging
Coll_42926.log 509131 Log file, useful mostly for debugging
Coll_42929.log 517561 Log file, useful mostly for debugging
Form_42922.log 968 Log file, useful mostly for debugging
Form_42924.log 2087 Log file, useful mostly for debugging
Tune-4292-4173.abc 1095 ABC music file with the extracted tune(s)
Tune-4292-4173.ps 40854 PostScript
Tune-4292-4173.txt 1095 Plain-text file with the extracted tune(s)
Tune-4292-get.log 5070 Log file, useful mostly for debugging
Tune-42924-get.log 8066 Log file, useful mostly for debugging
Tune-42928-get.log 5563 Log file, useful mostly for debugging
These files should be available for 24 hours.